The Mythbusters crew and Popular Mechanics will test later this month the old claim that the Porsche 928 could go faster if driven backwards. To do so, they spent a week flipping a 928's body to face the wrong direction

http://jalopnik.com/5680757/mythbust...ics-in-reverse

check it out here....

Courtesy pf Jalopnik.com

 

We must have been typing at the same time!

 

Just saw that, too funny.

 

Hey, the ultimate mod! Why didn't I think of that ?

 

Ha, After it airs I bet everyone who did a rear wiper delete will be kicking themselves.

 

I just posted on the other thread. The car is at SEMA in Vegas. Pictures in the other thread...

https://rennlist.com/forums/8027468-post5.html

 

Couldn't they just place it backwards in a wind tunnel?

 

Wind tunnel is not as much FUN ! makes for bad TV

 

Can this be right? Seems like an exaggeration.

 

Body is a Euro, engine looks like a Euro S to me.

 

Which part ??

 

Cross-link to an interesting reference:

https://rennlist.com/forums/928-foru...the-928-a.html

 

The 928's horsepower rating

 

From Theo ( And Rick )

Quote:
I found a list by Markus (MG) from the list put together by the 911 meeting that is quite interesting and contains a lot of Cd values:
Air resistance factor (Cd) x Front surface (A) m2 = air resistance index

356/1 GMÜND 1948 (open with 2 persons): 0.45 x 1.41 = 0.648
356/2 GMÜND Coupé and Cabrio 1948 to 1950: 0.29 x 1.62 = 0.469
356 to MJ 1952: 0.296 x 1.677 = 0.496
356 to MJ 1955: 0.365 x 1.692 = 0.618
356 Speedster to MJ 1958. Convertible D 1959: 0.377 x 1.640 = 0.618
356 A: 0.365 x 1.692 = 0.618
356 B: 0.398 x 1.611 = 0.641
356 B roadster: 0.386 x 1.599 = 0.617
356 B 1600 GS Carrera GTL (Abarth): 0.389 x 1.495 = 0.581
356 C: 0.398 x 1.611 = 0.641

550 R-S Spyder: ?

904 Carrera GTS: 0.383 x 1.401 = 0.536

914.1.7 (also 914/6, 914/8, 914/8 SII) MJ 1970 to MJ 1973: 0.38 x 1.60 = 0.608
914.2.0 MJ 1973 and 1974: 0.38 x 1.60 = 0.608
914.2.0 MJ 1975 and 1976: 0.377 x 1.60 = 0.603

924 (MJ 1976 to 1979): 0.36 x 1.76 = 0.634
924 (starting from MJ 1980): 0.33 x 1.79 = 0.591
924 turbo (931): 0.34 x 1.79 = 0.609
924 Carrera GT (937): 0.34 x 1.82 = 0.619
924S (946): 0.33 x 1.81 = 0.597

944 (also S) MJ 1982 to 1989: 0.35 x 1.82 = 0.637
944 turbo (951) (also S2, turbo S, 968 CS, 968 turbo S): 0.33 x 1.89 = 0.624
944 S2 Cabrio MJ 1989 to 1991 (also S2 Cabrio, turbo Cabrio, 968 Cabrio): 0.36 x 1.87 = 0.673

928 MJ 1978 to 1982: 0.41 x 1.95 = 0.799
928 S MJ 1980 to 1986: 0.38 x 1.95 = 0.741
928 S4 MJ 1987 to 1991 (also CS. GT): 0.34 x 1.98 = 0.673
928 GTS MJ 1992 to 1995: 0.35 x 2.02 = 0.707

986 Boxster: 0.31 x 1.93 = 0.598
986 Boxster S MJ 2000 to 2002: 0.32 x 1.93 = 0.617

987 Boxster: 0.29 x 1.96 = 0.57
987 Boxster S: 0.30 x 1.97 = 0.59
987 Cayman S: 0.29 x 1.98 = 0.57

955 Cayenne (V6) MJ 2004: 0.38 x 2.78 = 1.056
955 Cayenne S (and turbo) MJ 2003 + 2004: 0.39 x 2.78 = 1.084

901 1964: 0.363 x 1.685 = 0.612

911 MJ 1965 to 1967 all types (also Targa and S): 0.363 x 1.685 = 0.612
911 MJ ' 68 (all types): CD x A (m2) = 0.381 x 1.6853 = 0.642

912: Similar to 911 of respective model years

911 MJ ' 69-'73: Cd x A (m2) = 0.408 x 1.71 = 0.697
911 RS MJ 1973: 0.397 x 1.73 = 0.686
911 MJ 1974 to MJ 1977 (also S. Targa): 0.39 x 1.76 = 0.686
911 SC MJ 1978 to MJ 1983 (also Targa and Cabrio) and Carrera MJ 1974 to MJ 1977: 0.40 x 1.77 = 0.708
911 Carrera 3.2 MJ 1984 to MJ 1989: 0.39 x 1.77 = 0.690
911 Carrera 3.2 MJ 1984 to MJ 1989 with front and tail spoiler (also Clubsport):0.38 x 1.77 = 0.672
911 turbo (930) (also WTL, SC/RS, turbo slant nose): 0.39 x 1.86 = 0.725

959: 0.31 x 1.92 = 0.595

964 (also R-S. R-S America, R-S N/GT): Cd x A (m2) = 0.32 x 1.79 = 0.573
964 turbo (994). (Frere): Cd x A (m2) = 0.35 x 1.88 = 0.658
964 turbo (994) (also WTL, Jubi) (Bongers): 0.36 x 1.89 = 0.680
964 turbo S lightweight construction (994) (also R-S 3.8. turbo 3.6, turbo 3.6 low rise building): 0.35 x 1.89 = 0.662

993 (also R-S): 0.33 x 1.86 = 0.614
993 R-S Clubsport (with rear wing 0 Angle of incidence): 0.34 x 1.86 = 0.632
993 R-S Clubsport (with rear wing 9 Angle of incidence): 0.36 x 1.86 = 0.669
993 GT 2: 0.34 x 2.04 = 0.684
993 turbo (also 2S. 4S, turbo Cabrio): CD x A (m2) = 0.34 x 1.93 = 0.656

996: Cd x A (m2) = 0.30 x 1.94 = 0.582
996 4S: 0.30 x 2.00 = 0.60
996 GT 2: 0.34 x 1.96 = 0.666
996 GT 3 MJ 1999 to 2001: 0.30 x 1.95 = 0.585
996 turbo: 0.31 x 2.0 = 0.62

997: 0.28 x 2.00 = 0.56
997 Cabrio: 0.29
997S: 0.29 x 2.00 = 0.58
997S Cabrio: 0.29
980 Carrera GT: 0.396 x 1.94 = 0.768

Theo
1988 928S4 cherry talk
The Netherlands

 

Dibs on the drivetrain when they are done being idiots. Poor Euro. :-(